Question

A compound ‘X’ on heating decomposes to give compounds ‘Y’ and’ Z’. When 10 g of X is decomposed completely, it formed 6.5 g of Y and 3.5 g of Z. Show that the data is in agreement with the law of conservation of mass.

Answer 1

Answer:

as the compound x is decomposed.

to form y and z

so x ------- y + z

it is decomposition reaction

we know that law of conservation of mass say that mass can neither be created nor destroyed in a chemical reaction.

so the mass of compound x is 10 g

and the mass of the compounds y and z is 6.5 and 3.5 respectively.

so by adding both the masses. Y and Z we get

6.5 + 3.5 = 10 g

so Lhs = Rhs

hence this agreement satisfies law of conservation of mass.